:root {
  --bg: #0b1020;
  --panel: #111731;
  --border: #26304f;
  --text: #e7ecf7;
  --muted: #93a0bd;
  --accent: #7c5cff;
  --accent2: #22d3ee;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a { color: inherit; }

.btn {
  display: inline-block;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.12s, border-color 0.12s;
}
.btn:hover { transform: translateY(-1px); border-color: var(--accent); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), #5b8cff);
  border: none;
}
.btn.big { padding: 15px 28px; font-size: 16px; }

/* NAV */
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 18px max(24px, 6vw);
  position: sticky;
  top: 0;
  background: rgba(11, 16, 32, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}
.logo { font-weight: 900; font-size: 20px; letter-spacing: -0.02em; text-decoration: none; }
.logo em { color: var(--accent); font-style: normal; }
.nav nav { flex: 1; display: flex; gap: 22px; }
.nav nav a { color: var(--muted); text-decoration: none; font-size: 14px; font-weight: 600; }
.nav nav a:hover { color: var(--text); }

/* HERO */
.hero {
  text-align: center;
  padding: 80px 24px 40px;
  background:
    radial-gradient(900px 480px at 50% -10%, rgba(124, 92, 255, 0.18), transparent),
    radial-gradient(700px 400px at 85% 20%, rgba(34, 211, 238, 0.08), transparent);
}
.badge {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--accent2);
  border: 1px solid rgba(34, 211, 238, 0.35);
  background: rgba(34, 211, 238, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(34px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
}
.grad {
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lead {
  max-width: 640px;
  margin: 22px auto 30px;
  color: var(--muted);
  font-size: 17px;
}
.lead b { color: var(--text); }
.cta { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.hint { color: var(--muted); font-size: 13px; }

/* DEMO mockup */
.demo { margin: 60px auto 0; max-width: 720px; }
.demo-card {
  background: linear-gradient(135deg, #7c3aed, #06b6d4);
  border-radius: 22px;
  padding: clamp(24px, 6vw, 56px);
  box-shadow: 0 30px 90px rgba(124, 92, 255, 0.25);
}
.demo-window {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(2, 6, 23, 0.45);
  transform: rotate(-1.2deg);
}
.demo-bar {
  height: 34px;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 14px;
}
.demo-bar i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.demo-bar i:nth-child(1) { background: #ff5f57; }
.demo-bar i:nth-child(2) { background: #febc2e; }
.demo-bar i:nth-child(3) { background: #28c840; }
.demo-body { padding: 26px; }
.line { height: 12px; border-radius: 6px; background: #e2e8f0; margin-bottom: 12px; }
.w60 { width: 60%; background: #c7d2fe; }
.w90 { width: 90%; }
.w75 { width: 75%; }
.chartrow { display: flex; gap: 10px; align-items: flex-end; height: 110px; margin-top: 20px; }
.chartrow .bar { flex: 1; border-radius: 6px 6px 0 0; background: linear-gradient(180deg, #7c5cff, #5b8cff); }
.h40 { height: 40%; } .h70 { height: 70%; } .h55 { height: 55%; }
.h90 { height: 90%; } .h65 { height: 65%; } .h100 { height: 100%; }
.demo-caption { color: var(--muted); font-size: 13px; margin-top: 16px; text-align: center; }

/* SECTIONS */
.section { padding: 80px max(24px, 6vw); max-width: 1100px; margin: 0 auto; }
.section h2 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 900;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: 14px;
}
.section-sub { text-align: center; color: var(--muted); margin-bottom: 40px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; margin-top: 40px; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}
.card .ico { font-size: 26px; margin-bottom: 10px; }
.card h3 { font-size: 17px; margin-bottom: 6px; }
.card p { color: var(--muted); font-size: 14px; }

/* PRICING */
.prices { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; align-items: stretch; }
.price-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.price-card.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 20px 60px rgba(124, 92, 255, 0.18); }
.price-card .tag {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), #5b8cff);
  font-size: 11px;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
}
.price-card h3 { font-size: 16px; color: var(--muted); }
.price { font-size: 40px; font-weight: 900; margin: 8px 0 16px; }
.price span { font-size: 14px; font-weight: 600; color: var(--muted); }
.price-card ul { list-style: none; margin-bottom: 22px; flex: 1; }
.price-card li { font-size: 14px; padding: 5px 0; color: var(--muted); }
.price-card .btn { text-align: center; }

/* FAQ */
.faq { max-width: 680px; margin: 30px auto 0; }
.faq details {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  margin-bottom: 10px;
}
.faq summary { font-weight: 700; cursor: pointer; font-size: 15px; }
.faq p { color: var(--muted); font-size: 14px; margin-top: 10px; }

footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 28px max(24px, 6vw);
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
}
footer a { color: var(--accent2); }